I have extracted the scripts (at least I think they are) from a mes.arc file which I understand to be an archive. The files inside all contain various texts and references to ingame things such as sound files and voice.

I have yet to find a way to edit these suitably, and moreso to rebuild the .arc file to put back into the game. Any help would be amazing. Below is an image example of my translations and also a link to what I think is one of the scripts. There are 298 .MES files totally about 10.1mb.